Journal
OPTICS COMMUNICATIONS
Volume 281, Issue 17, Pages 4540-4544Publisher
ELSEVIER
DOI: 10.1016/j.optcom.2008.04.068
Keywords
quantum cryptography; quantum key distribution; entanglement
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We demonstrate a prototype-implementation of deterministic information encoding for quantum key distribution (QKD) following the ping-pong coding protocol [K. Bostrom, T. Felbinger, Phys, Rev. Lett. 89 (2002) 187902-1]. Due to the deterministic nature of this protocol the need for post-processing the key is distinctly reduced compared to non-deterministic Protocols. In the course of our implementation we analyze the practicability of the protocol and discuss some security aspects of information transfer in such a deterministic scheme. (c) 2008 Elsevier B.V. All rights reserved.
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